Prone/supine pillow



FIG. 1 is a bottom plan view of a prone/supine pillow showing my newdesign;

FIG. 2 is a right side elevational view thereof, the left side (notshown) is a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a front elevational view thereof.

The ornamental design for a prone/supine pillow, as shown and described.